biesy[8], bysie[8], ibisy[8], biesi[7], bisie[7],
bisy[7], bies[6], ibis[6], esie[4], siei[4],
bee[5], bis[5], esy[4], eis[3], sie[3],
by[5], be[4], bi[4], ee[2], ii[2], es[2], se[2], si[2],
